RA Session II is a serial biotech entrepreneur with more than 20 years of experience in the life sciences industry, primarily in business development, corporate strategy, finance and advisory roles. He is the Co-founder, President, and CEO of Signify Bio, a company on a mission to create personalized medicines for all by combining the promise of signal peptide engineered control with the speed and power of mRNA encoded design. He founded Taysha Gene Therapies and served as its CEO, President and Board Member. Previously, he served as Chief Business Officer of the gene therapy subsidiaries of BridgeBio, as well as Senior Vice President of Corporate Strategy and Business Development at AveXis.